IGNITION
Page 2A-16 90-884294 OCTOBER 2001
Charging System Alternator
Battery charging system, including the regulator, is contained within the belt driven alter-
nator. At cranking speeds, electrical power for the engine is provided by the boat battery
– minimum recommended size is 490 Cold Cranking Amperes (CCA) or 630 Marine
Cranking Amperes (MCA). Above 550 RPM, all electrical power is provided by the alter-
nator. Should engine rpm drop below 550 RPM, the alternator is not capable of providing
sufficient output and the battery becomes the primary source of electrical power. Alterna-
tor output (when hot) to the battery @ 2000 RPM is approximately 35 - 41 amperes.
59067
a
a-Alternator
Ignition Coil
Each module contains an ignition coil and amplifier circuitry which produces approximate-
ly 50,000 volts at the spark plugs.
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